Combined scraper and dumping device



2 Sheets-Sheet 1 IN VEN TOR.

' ATTORNEY.

l. E. BURKETT" COMBINED SCRAPER AND numme DEVICE Filed Sept. 11, 1922May 12, 1925.

l. E. BURKETT COMBINED SCRAPER AND DUMPING DEVICE 2 sheets -shaet 2 May12, 1925,

' Filed Sept. 11, 1922 INVENT OR.

4 ATTORNEY.

Patented May 12, 1925.

UNITED STATES IRA E. BURKETT, or MACON, GEORGIA, AssIeNon 'rosonorrnLn-nunxnr'r ooNs'rR-Uo- 'IION COMPANY, or MACON, enoaern, aCORPORATION or GEORGIA.

corasrnnn soaarnn AND nor/Irina DEVICE.

Application filed September 11, 1922. Serial No. 587,411.

Ta all whom it may concern:

Be ,it known that 1, TBA E. BURKETT', a citizen of the United States,residing at Macon, in the county of Bibb and State of Georgia, haveinvented certain new and use fullmprovements in Combined Scraper andDumping Devices; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will emble othersskilled in the art to which it appertains to make and use the same.

This invention relates to excavators, and more particularly to adistantly controlled combined scraper and dumping device for use inconnection with engineering projects involving the excavation of largeor extended areas where it is convenient or neces sary to convey,distribute and dump dirty or gravel to and from points remote from thesource of locomotive power and control, such as: grading extensiveareas, levee construction or repair, railroad cuts and embankments,canal construction and the like.

The object of my invention. is to provide a device of the characterreferred to in which an ordinary dirt'scraper may be utilized to collectdirt or gravel from any desired point and convey and dump the same atany point within or outside the excavation or grading areas either todistribute the same over such area, or to dump it into suitable haulingvehicles for removal.

Further objects of my invention are to provide a deviceof the characterreferred to which will be simple, durable and inexpensive inconstruction, use and transportation from place to place, in which anordie nary scraper may be readily connected or disconnected at the willof the operator.

The specific purpose of my'invention is to.

provide mechanical means for drawing an ordinary scraper forwardly alonga line from a variably fixable point .to fill the scraper and afterwardconvey it to any clesired point along such line for dumping to providemechanical means for dumping the scraper at any point along the'line ofits forwardmovement over the ground andto provide mechanical means forreturning the scraper by drawing it backwardly for re-,

peated refilling and dumping at any point or points along its line ofprogressive movement over the surface of the ground without requiringmanual control for so doing.

My invention will first be hereinafter more particularly described, withreference to the accompanying drawings, which are to be taken as a partof this specification and then pointed out in the claimsat the end ofthe description. I I

In said drawings, Fig. 1 is a perspective elementary view of my devicein position for use, illustrating the fundamental arrangement of thevarious elements and showing the means under power control for drawingthe scraper forwardly .or backwardly and the means for dumping thescraper at will. In this view the scraper is shown in loading 1,537,580TENT OFFICE.. -f

position as it is being drawn forwardly to be afterward conveyed to thedesired point for dumping; I

. 2 is a side elevational View of the device illustrating a convenientarrangement of the various elements forlevee construction, the scraperand standing line being shown in full lines indumping position and. indotted lines in conveying position;

v Fig. 3 is a side elevation of the scraper in loading position, thestanding line being slack; I

Fig. 4 is a side elevation of hauling positio n; and I. N

Fig. 5 is a plan view of the same. .i

Referring to the drawings, in which like reference numerals are used todenotecorresponding parts throughout the several views,

the scraper in 7 1 denotes an ordinarysteamengine orlocomotive adaptedunder suitable lever control by an operator to actuate associatedrotat-,

to Fig. 1, a tension controllable standing line or cable 9 is secured atone end to and, wound upon the drum 2, its other or free end beingpassed over the uppermost pulley 6 on the scaffold 5 and from thence toa fixture or stake 10 towhich it is secured. The cable '9 may be drawntautor allowed to suspend" slack by virtue of its own weight betweensimply by winding or unwinding the cable the top of the scaffold 5 andthe fixture 10,

over the drum 2, the purpose therefore to be hereinafter moreparticularly defined.

.To the forward end of an ordinary scraper 11, preferably by means ofdivided chain sections, the ends of which are secured to I such way asto wind the cable 12 thereupon,

the scraper 11 will be drawn forward to load with earth and afterwardconvey the load to the desired point for dumping.

' To the upper side sections of the scraper 11, the respectiveextremities of an inverted U-shaped' bail are pivotally secured, the central part thereof being adapted to pivotal connection with one end of asuitable rod,

the opposite end' of the latter being pivotally connected to an;actuating hand lever 11", by which the bail may be caused to move forWard or backward beyond the balancing 'cen-t'er of the scraper. A reachor balance cable 11*,is attachedat one end to thetop center ofethebail,and at its other end to the hauling or pulling line v12, at, a pointforward of thelatters point of attachment with the scraper 11. It willbe readily un-' derstood that by means of the lever llflthe bail maybedrawn backward bey0ndthe balancing center of the scraper, thus causingthe reach or balance cable 11 to become taut ,o 'and pull the forwardend of the scraper down "beyond dead center in loadingposition,illustrated by Fig. 3, so that'i'ts spiked I edge or bottom will beforced to-d-ig into the'ground as the scraper is drawn forwardly by thecable 12 to load the same After the scrapenhas become filled with jearth,'the,hand lever 11 is manipulated to move the bail forward of thebalancing cen ter thereby relievingthe tension on the reach cable 11%allowing it to become loose or slack and permitting the scraper-toassume the'haulingpositionillustrated in Fig. 4; with its forward end'orbottom edge slightly above'the surface of thegipund so that it may v bedrawn forwardly to'convey the load to "the dumping point withoutbecoming snagged by the undulations of the'ground or by small rocks orother impediments embedded in the soil, 1

The scraper 11 is also preferablyprovided with a rearwardlyex'tendedY-shaped frame bar, the oppositely disposed ends of which" aresecured to the rearvside'sections of the scraper. "To the centralextremityof the frame bar, a suspension cable or chain 1,3is attached,the'opposite end of the cha n,

being connected to a pair oftraveling pulleys or pulley carriage 14, thelatter being adapted to move along the length of the suspended standingcable 9 with rela tion to the scraper as it is drawn forwardly orrearwardly,,the chan 13 being shorter than the measured height of thecable 9 above ground when taut. To the rear portion of the scraper 11 bysuitable attachment means, one end of a backing cable 15 is fastened,said backing cable being passed over pulleys 16 and 17 ,-the latterbeing secured to a suitable fixture 18 which may be either an ordinarystake driven in the ground, as illustrated in Fig, 1, or may be astanchion or post, as illustratedinFig. 2, suitably secured and bracedby guys 19 to a push car 20. The cable 15 is passed from the pulley-17,over the pulley 7 on the scaffold 5, and is wound upon the drum 3, itsend being securely fastened thereto. It will be readily understood thatwhenthe drum 4:, upon which the pulling cable 12 is wound, is allowed torun free,

andspend the cable, the drum 3 may be rotated to wind the backing cable15 there upon, thus drawing the scraper backwardly into position forreloading and, conveyance to the point of dumping.

The operation of my improved combined scraper and dumping device is asfollows 2 'The drum 2 upon which the standing cable 9 is wound isallowedto run free, permitting the'cable to suspend slack by virtue of its own"weight between the pulley '6 and the fixture 10. The scraper 11v isdrawn backwardly to the point (under the slack cable 9) at which it isdesired to begin loading, by winding the backing cable 15 upon its drum3, simultaneously allowing the drum 1 to run free to spendrthe pullingcable 12 as necessary. When the scraper 1.1 has been thus drawn to thepoint of loading, brakes are applied tothe drum and the ratchet lockingmeans should be set to revent slippage of the drum, while drum s houldbeset to run free and spend the backing-cable 15 as necessary. A groundoperator then pulls the hand lever 11 so that'the reach cable 11 011 thescraperwill be tightened to draw the scraper'in loading position when apull is exerted on the pulling cable 12. The drum 4- is then'caused torotate by the engine operator, to wind the pulling cable 12 thereon,whereupon the scraper-will be drawn beyond dead center and will scrapeup a load ofdirt or gravel in the well known manner. When the scraperhas been thus loaded, the ground operator pushes the hand lever 11 toloosen the reach cable 11",, so that the scraper will assume its haulingpositionas it is drawn forwardly by the pulling cable 12 to be conveyedto the point for dumping. As the scraper moves forward the backing cable15 is allowed to spend'freely therewith from the drum 3. When thescraper reaches the point for dumping brakes are applied to the drum 3and drum l is stopped, thus bringing the scraper to rest. Drum 2 is thencaused to rotate by the engine -oper ator, to wind the standing cable 9'thereon to tauten the same. As the cable 9 begins to tighten, thesuspension. cable or chain 13 fastened between the scraper and thepulley carriage 14;, will become taut and lift the rear of the scraperfree from the ground. WVhen the cable 9 becomes taut or nearly taut, thecable or chain 13 will consequently hoist the scraper entirely clear ofthe ground and completely upset it, thus effectually dumping thescraper, whereupon the drum 2 is allowed to run free relieving thetension on the standing cable 9 and loosening the same permitting it toassume its normal slack state so that the scraper will be lowered againto the ground. The drum 4 is then allowed to spend the pulling cable 12as the drum 3 is again rotated to wind the backing cable 15 thereon bywhich means the scraper is drawn backwardly to" the point for reloading.This operation is repeated until the proper depth of excavation has beenefiected, the earth being thus loaded, distributed or dumped at anydesired point between the fixture l0 and the scaffold 5. The area ofexcavation operation may be broadened or expanded at will merely bymoving the fixtures 10 or a 18 either by lengthening or shortening themeasured distance between such fixtures and the scaiiold, or by movingthe fixtures one way or the other in an arc with the scaffold as acenter. If preferred, as a matter of expediency, the free end of cable 9may be secured to the push car 20, so that the line of scraperoperations may be readily changed simply by pushing the car forward orbackward the desired distance, or referring to Fig. 2, the platform onwhich the engine and scaffold. are mounted, may be moved to establish anew line of operations.

Should it be desired to cart the earth away from the excavating area, aninclined runway 5 may be utilized, up which the scraper may be drawn andupset, to unload into a dump cart or car drawn in position thereunderwhere it will receive the load.

Various changes may be made in the details and arrangement of partsshown and described without departing from the spirit and scope of myinvention, and I do not desire to be restricted in the appended claimsto the specific structure shown.

Having thus described my invention, what I claim as new and desire tosecure by LettersPatent of the United States is:

1. In a combined loading and dumping device, a scraper; pulling cableshaving respective ends attached to said scraper for drawing the latterforwardly and backwar dly; anormally slack cable elevated above thesurface of the ground and secured at one end to a fixture; means actingon said last named cable independently of said pulling'cables forsuspending the scraper therefrom, by which the scraper will be liftedabove the ground when the cable is drawn taut; a series of independentlyrotatable cable drums mounted upon a platform which is supported. onwheels and movable transversely of the line of movement of said pull-1ng cables; and a power device for selectively actuating the drums, eachof said cables having their opposite ends wound upon a drum by which therespective cables are independently controlled.

2. In a combined loading and dumping device, a scraper; a pullingcable'having one end attached to said scraper for drawing it forwardlyand a backing cable having one end attached thereto for drawing itrearwardly; a normally slack cable suspended above the surface of theground and secured at one end to a fixture carried by a platform whichis mounted on wheels and movable transversely of the line of movement ofthe cable; a pulley movable along the length of said normally slackcable; a normally slack means for suspending the scraper from saidpulley, by which the scraper will be hoisted above the ground when saidcable is drawn taut independently of said pulling and backing cables;drums upon which the respective opposite ends of said cables areindependently wound, said drums being mounted upon a supportingstructure which is mounted on wheels and movable transversely of theline of movement of said cables; and means for inde pendently rotatingand selectively controlling said drums. i

3. A combined loading and dumping device comprising a scraper having anarm prO ect-mg rearwardly and upwardly from its rear end, a normallyslack cable having one end fixed at a distance from said scraper and theother end secured to a drum on which it may be wound for tightening andloosening said cable, a flexible connection between said cableand saidinclined arm including a pulley arranged to travel along ran ed u on asu ortin structure which is mounted upon wheels and movable transverselyof the line of movement of said cables, and means for independentlyrotating l e V 1637yb80 s'aiddiums; said Scraper'having a forwardlyend-When said levervis shifted to throw s'aid and backwardly swingingballthBIQOh, a ball forward, thus perynlfiel'ng the loaded flexibleconnection between the upper end 0 1 be flmwlr'wl h lts lntermedlate ofsaid bail and said pulling cable, a, lever bofitom su rf-aee restmgvonthe ground. "5 pivoted on the rear end of said cable and a y WheTeOf fi'g rod connectin saidlever and bail, whereby t-u e 1n the p es ce of owlt'n es the scraper may be held. inoperative p'osi- IRA E. BURKETT. 7t-ion withwits "cutting edge lowered and its Witnesses-z 7 rear endraised, and its position shifted; so HENRY HARRIS, as to false ltsfront-end and lower lts rear MORRIS HARRIS. Y I

